When configuring spring’s XML file, you want to start component scanning. As a result, the following error occurred during the operation:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                           http://www.springframework.org/schema/beans/spring-beans.xsd">
    <context:component-scan base-package="com.zxb"></context:component-scan>
</beans>

org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 10 in XML document from class path resource [bean2.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 10; columnNumber: 52; CVC complex type. 2.4. C: wildcard matching is comprehensive, but the element cannot be found‘ context:component-scan ’A statement from the government.

After searching for a long time, it turned out that in the XML file, you need to specify the specific location of the schema file to be followed through the schemalocation . I forgot to configure it, just add it.

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context" 
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                           http://www.springframework.org/schema/beans/spring-beans.xsd
                           http://www.springframework.org/schema/context
                           http://www.springframework.org/schema/context/spring-context.xsd">
    <context:component-scan base-package="com.zxb"></context:component-scan>
</beans>

It’s not detailed enough~